<template>
    <div class="login-container">
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
            <div class="title-container">
                <h3 class="title">登录</h3>
            </div>
            <el-form-item prop="username">
                <span class="svg-container">
                    <i class="iconfont icon-yonghu"></i>
                </span>
                <el-input ref="username" v-model="loginForm.username" placeholder="Username" name="username" type="text" tabindex="1" auto-complete="on" />
            </el-form-item>

            <el-form-item prop="password">
                <span class="svg-container">
                    <i class="iconfont icon-tianchongxing-"></i>
                </span>
                <el-input :key="passwordType" ref="password" v-model="loginForm.password" :type="passwordType" placeholder="Password" name="password" tabindex="2" auto-complete="on" @keyup.enter.native="handleLogin" />
                <span class="show-pwd" @click="showPwd">
                    <i class="iconfont" :class="passwordType === 'password' ? 'icon-yincang' : 'icon-xianshikejian'"></i>
                </span>
            </el-form-item>

            <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">登录</el-button>

            <div class="tips">
                <span>没有账号？去</span><span class="register" @click="goRegister">注册</span>
            </div>

        </el-form>
    </div>
</template>

<script>
export default {
    name: "Login",
    data() {
        return {
            loginForm: {
                username: "tom",
                password: "tom",
            },
            loginRules: {
                username: [
                    {
                        required: true,
                        message: "请输入账号",
                        trigger: "blur",
                    },
                ],
                password: [
                    {
                        required: true,
                        message: "请输入密码",
                        trigger: "blur",
                    },
                ],
            },
            loading: false,
            passwordType: "password",
            redirect: undefined,
        };
    },
    watch: {
        $route: {
            handler: function (route) {
                this.redirect = route.query && route.query.redirect;
            },
            immediate: true,
        },
    },
    methods: {
        showPwd() {
            if (this.passwordType === "password") {
                this.passwordType = "";
            } else {
                this.passwordType = "password";
            }
            this.$nextTick(() => {
                this.$refs.password.focus();
            });
        },
        handleLogin() {
            this.$refs.loginForm.validate((valid) => {
                if (valid) {
                    this.loading = true;
                    this.$store
                        .dispatch("login", this.loginForm)
                        .then(() => {
                            this.$store.dispatch("getInfo").then(() => {
                                this.$router.push({
                                    path: this.redirect || "/",
                                });
                            });
                            this.loading = false;
                        })
                        .catch(() => {
                            this.loading = false;
                        });
                } else {
                    console.log("error submit!!");
                    return false;
                }
            });
        },
        // 跳转注册页面
        goRegister() {
            this.$router.push("/register");
        },
    },
};
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
    .login-container .el-input input {
        color: $cursor;
    }
}

/* reset element-ui css */
.login-container {
    .el-input {
        display: inline-block;
        height: 47px;
        width: 85%;

        input {
            background: transparent;
            border: 0px;
            // -webkit-appearance: none;
            border-radius: 0px;
            padding: 12px 5px 12px 15px;
            color: $light_gray;
            height: 47px;
            caret-color: $cursor;

            &:-webkit-autofill {
                box-shadow: 0 0 0px 1000px $bg inset !important;
                -webkit-text-fill-color: $cursor !important;
            }
        }
    }

    .el-form-item {
        border: 1px solid rgba(255, 255, 255, 0.1);
        background: rgba(0, 0, 0, 0.1);
        border-radius: 5px;
        color: #454545;
    }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
    height: 100%;
    width: 100%;
    background-color: $bg;
    overflow: hidden;

    .login-form {
        position: relative;
        width: 520px;
        max-width: 100%;
        padding: 160px 35px 0;
        margin: 0 auto;
        overflow: hidden;
    }

    .tips {
        font-size: 14px;
        color: #fff;
        margin-bottom: 10px;

        span {
            &:first-of-type {
                margin-right: 16px;
            }
        }
    }

    .svg-container {
        padding: 6px 5px 6px 15px;
        color: $dark_gray;
        vertical-align: middle;
        width: 30px;
        display: inline-block;
    }

    .title-container {
        position: relative;

        .title {
            font-size: 26px;
            color: $light_gray;
            margin: 0px auto 40px auto;
            text-align: center;
            font-weight: bold;
        }
    }

    .show-pwd {
        position: absolute;
        right: 10px;
        top: 7px;
        font-size: 16px;
        color: $dark_gray;
        cursor: pointer;
        user-select: none;
    }

    .register {
        color: skyblue;
        &:hover {
            cursor: pointer;
        }
    }
}
</style>
